JP6161996B2 - Cutting machine - Google Patents

Description

  The present invention relates to a cutting machine such as a portable circular saw.

  2. Description of the Related Art Conventionally, a cutting machine such as a portable circular saw used for cutting wood is known. This type of cutting machine includes a base that comes into contact with a workpiece, and a main body with a processing tool such as a saw blade provided on the upper surface of the base, and adjusts the amount of tilt of the main body relative to the base. Thus, a cutting depth adjusting mechanism is provided that can set the desired cutting depth by changing the amount of protrusion of the saw blade from the lower surface of the base.

  Further, in Patent Document 1 below, a scale is provided on a guide link that constitutes a cutting depth adjusting mechanism, and the end of the main body is used as a pointer indicating the scale so that a saw from the bottom surface of the base, which is the cutting depth, is provided. A cutter capable of reading the protruding amount of the blade is described. However, the guide link in the cutting depth adjusting mechanism of Patent Document 1 described below is formed in a thin plate shape because it is necessary to bend in adjusting the cutting depth as detailed in Patent Document 2 below. Therefore, when the cutting machine is pressed against the workpiece during the cutting operation, the guide link is deformed and it is difficult to process with high accuracy.

  Therefore, in order to solve the above problem, Patent Documents 3 and 4 below describe a technique that employs a highly rigid guide link. In this case, since the guide link does not bend like the thin plate-shaped guide link described above, the guide link is connected to the base so as to be tiltable when adjusting the cutting depth.

Japanese Utility Model Publication No. 61-125401 JP 2003-291102 A Japanese Patent No. 4832008 Japanese Patent No. 523003

  However, if a scale is provided on the guide link that is connected to the base so that it can be tilted, and the scale is pointed by a pointer provided on the main body, the guide link moves along with the tilt of the main body with respect to the base for adjusting the depth of cut. Since the scale is tilted, the scale and the pointer are separated from each other, making it difficult to accurately read the cutting depth.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a cutting machine that can easily read the cutting depth with high accuracy.

The cutting machine according to the present invention includes a base that contacts the workpiece, a main body that is provided with a saw blade that cuts the workpiece, and is supported on the upper surface side of the base so as to be tiltable about one end side; A cutting depth adjusting mechanism that adjusts a tilting amount of the main body relative to the base to adjust a protruding amount of the saw blade from a lower surface of the base, wherein the cutting depth adjusting mechanism includes the base A guide link that is connected to the upper surface of the guide link and extends upward, and a fixing means that fixes the other end of the main body at a desired position in the longitudinal direction of the guide link. The guide link has a scale. the main body portion with provided is provided with a pointer pointing to the scale, it is configured such that as possible out of by the said pointer scale reading protrusion amount of the saw blade from the lower surface of the base The pointer is supported so that the base is pivotable or movable, and a tip portion pointing to the scale is urged so as to follow the scale . The distal end portion is located on a connection location side between the base and the guide link .

A cutting machine according to the present invention includes a base that abuts on a workpiece, a saw blade that cuts the workpiece, and a main body that is supported to be tiltable about one end on the upper surface side of the base; A cutting depth adjusting mechanism that adjusts a tilting amount of the main body relative to the base to adjust a protruding amount of the saw blade from a lower surface of the base, wherein the cutting depth adjusting mechanism includes the base A guide link that is connected to the upper surface of the guide link and extends upward, and a fixing means that fixes the other end of the main body at a desired position in the longitudinal direction of the guide link. The guide link has a scale. the main body portion with provided is provided with a pointer pointing to the scale, it is configured such that as possible out of by the said pointer scale reading protrusion amount of the saw blade from the lower surface of the base Ri, the scale is characterized by being urged to follow the pointer while being rotatably supported.

A cutting machine according to the present invention includes a base that abuts on a workpiece, a saw blade that cuts the workpiece, and a main body that is supported to be tiltable about one end on the upper surface side of the base; A cutting depth adjusting mechanism that adjusts a tilting amount of the main body relative to the base to adjust a protruding amount of the saw blade from a lower surface of the base, wherein the cutting depth adjusting mechanism includes the base a guide link is coupled to the upper surface tiltably extending upwardly provided with a fixing means for fixing the other end of the body portion in the longitudinal direction of the desired position of the guide link, said the main body guide the said guide link with scale is provided along the link is provided with guidelines pointing to the scale, by the scale and the pointer to read the amount of protrusion of the saw blade from the lower surface of the base Is configured to cut in, the guidance base portion is biased so that the tip end portion pointing to the scale while being pivotably or movably supported to follow the scale, further, the pointer Is characterized in that the base portion is located on the connecting portion side of the base and the guide link with respect to the tip portion .

  ADVANTAGE OF THE INVENTION According to this invention, the cutting machine which can read the cutting depth easily and accurately can be provided.

It is a top view of the cutting machine concerning a first embodiment of the present invention. It is a principal part enlarged front view of the cutting machine which concerns on 1st embodiment of this invention. It is a right view of the cutting machine which concerns on 1st embodiment of this invention. It is a left view of the cutting machine which concerns on 1st embodiment of this invention, and has shown the state with the maximum cutting depth. It is a left view of the cutting machine which concerns on 1st embodiment of this invention, and has shown the state which made the cutting depth small from the state of FIG. It is a principal part enlarged front view of the cutting machine which concerns on 2nd embodiment of this invention. It is a left view of the cutting machine which concerns on 2nd embodiment of this invention, and has shown the state with the maximum cutting depth. It is a left view of the cutting machine which concerns on 2nd embodiment of this invention, and has shown the state which made the cutting depth small from the state of FIG. It is a left view of the cutting machine which concerns on 3rd embodiment of this invention. It is a right view of the cutting machine which concerns on 4th embodiment of this invention. It is a figure which shows the cutting machine which concerns on 5th embodiment of this invention, (a) is a left view, (b) is a principal part enlarged front view.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, preferred embodiments for carrying out the invention will be described with reference to the drawings. The following embodiments do not limit the invention according to the claims, and all combinations of features described in the embodiments are not necessarily essential to the solution means of the invention. Further, in the present specification, “front, rear, left, right, upper, lower” is defined and described as shown in the drawing based on the traveling direction during the cutting operation.

  First, a first embodiment of the present invention will be described with reference to FIGS.

  The cutting machine according to the first embodiment of the present invention is in contact with the main body portion 10 provided with the saw blade 11 rotating around the axis in the left-right direction, and the material to be cut, and is guided along the upper surface of the material to be cut. And a base 51 for the purpose. The main body 10 is disposed on the right side of the motor case 12 that houses a motor (not shown) that is a drive source for rotationally driving the saw blade 11, and the saw blade reduces the rotational drive of the motor. 11, a gear case 21 that houses a drive transmission unit (not shown) composed of a gear for transmitting to 11, a handle 13 for gripping a cutting machine at the time of cutting work, etc., and a saw blade disposed on the right side of the gear case 21 11 and a lower guard 61 that covers the saw blade 11 from below when a cutting operation is not performed. The handle 13 is provided with a switch 14 for controlling the operation / stop of the cutting machine.

  The base 51 is formed with an opening 52 for projecting the saw blade 11 and the lower guard 61 downward. The lower guard 61 is installed so as to be rotatable around the rotation axis of the saw blade 11 and is biased by a spring 64 counterclockwise in FIG. A stopper 62 is attached below the gear case 21 with a bolt 63, and the lower guard 61 abuts against the stopper 62, so that the rotation of the lower guard 61 in the counterclockwise direction is restricted.

  A boss portion 31b having a hole 31a formed at the center is provided at the front end portion of the saw cover 31. The bracket 54 attached to the front portion of the base 51 is provided with a screw shaft 53 having a left and right axis, and the main body portion 10 is attached to the base portion 10 by rotatably fitting the hole 31a and the screw shaft 53. 51 can be tilted up and down around the axis of the screw shaft 53. Further, a notch depth adjusting mechanism 70 described later is provided at the rear portion of the gear case 21.

  The notch depth adjusting mechanism 70 includes a supporter 71 provided at the rear portion of the base 51, a support shaft 72 rotatably supported by the supporter 71 and having a horizontal axis, and a support shaft 72 fixed to a hole at a lower end portion. The guide link 73 and the fixing means 80 are provided. The guide link 73 has an arm portion 73a extending in an arc shape along the inner side surface of the saw cover 31 from the lower end portion toward the upper front side, and the arm portion 73a has a central portion in the left-right direction along its longitudinal direction. A penetrating guide groove 73b is formed. Further, a shallow groove 73c that is slightly larger than the guide groove 73b is formed on the right side surface side of the arm portion 73a. The guide link 73 is made of an aluminum die-cast material or the like, and has an appropriate rigidity so as not to be easily deformed even when the weight of the main body 10 is loaded. The fixing means 80 includes a nut 81 that is non-rotatable and slidable in the shallow groove 73c of the guide link 73, a bolt 82 that is inserted into the guide groove 73b from the outside of the saw cover 31 and screwed into the nut 81, and a bolt A lever 83 fixed to the head of 82 is provided, and the saw cover 31 and the guide link 73 can be fixed and released by screwing the bolt 82 into the nut 81 by turning the lever 83. Yes.

  With the above-described configuration, when adjusting the cutting depth, the lever 83 is turned to release the fixing of the saw cover 31 and the guide link 73, and the tilt angle of the main body 10 with respect to the base 51 is changed to change the bottom surface of the base 51. After adjusting the projection amount of the saw blade 11 from the desired value, the saw cover 31 and the guide link 73 are fixed by rotating the lever 83 again. At this time, as shown in FIGS. 4 and 5, the guide link 73 tilts up and down around the support shaft 72 as the main body 10 tilts with respect to the base 51.

  The cutting machine according to the first embodiment of the present invention is provided with a scale 75 and a pointer 91 that can read the cutting depth in order to facilitate the cutting depth adjustment work. Next, this configuration will be described.

  The main body portion 10 of the cutting machine according to the first embodiment of the present invention is provided with a pointer 91, and the cutting depth is read by the pointer 91 pointing to the guide link 73 of the cutting depth adjusting mechanism 70. A scale 75 is provided. The scale 75 is a belt-like sheet printed with scale lines and numerical values and coated with an adhesive on the back surface, and has a width smaller than the width in the left-right direction of the arm portion 73a of the guide link 73. A peripheral surface 73e slightly lower than the outer peripheral surface 73d is formed on the outer peripheral portion of the arm portion 73a, and a scale 75 is attached to the peripheral surface 73e. In the pasted state, the outer surface of the scale 75 is slightly lower than the outer peripheral surface 73d. On the rear part of the saw cover 31 of the main body part 10, a pointer 91 is installed at a position facing the outer peripheral part of the arm part 73a. The pointer 91 is formed with a forked portion 92 and a hole 92 that communicates them in the left-right direction. A pair of support portions 32, 32 are formed at the rear portion of the saw cover 31, and a pin 93 having a horizontal axis is supported by the support portions 32, 32 at both ends thereof. Then, by inserting the pin 93 into the hole 92, the pointer 91 is supported so as to be rotatable about the pin 93. A torsion coil spring 94 is disposed by being guided by a pin 93 between the two branches of the base of the pointer 91. In FIG. 3, the torsion coil spring 94 is set so that its elastic force acts in a direction in which the pointer 91 is rotated counterclockwise, whereby the tip of the pointer 91 is placed on the outer peripheral surface 73d of the arm portion 73a. It is biased to abut. Since the outer peripheral surface 73d of the arm portion 73a and the scale 75 are adjacent to each other, the display of the scale 75 indicated by the tip of the pointer 91 in contact with the outer peripheral surface 73d can be easily read.

  When the cutting depth is adjusted in the cutting machine having the above-described configuration, as described above, the guide link 73 tilts in the vertical direction about the support shaft 72 as the main body portion 10 tilts with respect to the base 51. As a result, the positional relationship between the support portions 32 and 32 of the saw cover 31 and the scale 75 provided on the guide link 73 changes. In this embodiment, the pointer 91 is rotatably supported and the scale 75. Since it is urged by the torsion coil spring 94 so as to slidably contact and follow the outer peripheral surface 73d of the arm portion 73a adjacent to the arm portion 73a, the adjacent state between the tip of the pointer 75 and the scale 75 is maintained. Therefore, even when the depth of cut is adjusted, the display of the scale 75 can be easily read with high accuracy. In the present embodiment, the pointer 91 is in sliding contact with the outer peripheral surface 73d of the arm portion 73a, not the scale 75, so that the scale 75 is not damaged, and the scale line and the numerical value can be easily read over a long period of time. Can be maintained. Note that the scale line and the numerical value of the scale 75 take into account the amount of rotation of the pointer 91 associated with the cutting depth adjustment.

  Next, the cutting machine which concerns on 2nd embodiment of this invention is demonstrated with reference to FIGS. Note that description of the same configuration as the first embodiment may be omitted.

  The main difference between the first embodiment and the second embodiment described above is that, in the first embodiment, the guide link 73 is formed on the inner surface of the saw cover 31 from the lower end portion toward the upper front side. In contrast, in the second embodiment, the guide link 173 extends along the outer surface of the saw cover 31 from the lower end thereof toward the upper front side. is there.

  In the cutting machine according to the second embodiment of the present invention, the cutting depth adjusting mechanism 170 has a supporter 171 provided at the rear part of the base 51 and a pivotal support supported by the supporter 171 and a horizontal axis. A support shaft 172, a guide link 173 to which the support shaft 172 is fixed in the hole at the lower end, and a fixing means 180 are provided. The guide link 173 has an arm portion 173a extending in an arc shape along the left outer surface of the saw cover 31 from the lower end portion toward the upper front side, and in the center of the arm portion 173a along the longitudinal direction thereof. A guide groove 173b penetrating in the left-right direction is formed. The guide link 173 is made of an aluminum die-cast material or the like, and has an appropriate rigidity so as not to be easily deformed even when the weight of the main body 10 is loaded. The fixing means 180 includes a female screw (not shown) formed in the saw cover 31 on the right side of the guide link 173, a bolt (not shown) inserted through the guide groove 173b of the guide link 173 from the left, and screwed into the female screw. And a lever 183 that is fixed to the head of the bolt, and by fixing the bolt to the female screw by turning the lever 183, the saw cover 31 and the guide link 173 can be fixed and released. ing.

  With the above-described configuration, when adjusting the cutting depth, the lever 183 is rotated to release the fixing of the saw cover 31 and the guide link 173 and change the tilt angle of the main body 10 with respect to the base 51 to change the bottom surface of the base 51. After adjusting the projection amount of the saw blade 11 from the desired value, the saw cover 31 and the guide link 173 are fixed again by the rotation of the lever 183. At this time, as shown in FIGS. 7 and 8, the guide link 173 tilts in the vertical direction about the support shaft 172 as the main body 10 tilts with respect to the base 51.

  The cutting machine according to the second embodiment of the present invention is provided with a scale 175 and a pointer 191 that can read the cutting depth in order to facilitate the cutting depth adjustment work. Next, this configuration will be described.

  The main body portion 10 of the cutting machine according to the second embodiment of the present invention is provided with a pointer 191, and the cutting depth is read by the pointer 191 pointing to the guide link 173 of the cutting depth adjusting mechanism 170. A scale 175 is provided. The scale 175 is a belt-like sheet on which scale lines and numerical values are printed and an adhesive is applied to the back surface. The width of the scale 175 is smaller than the width in the left-right direction of the arm portion 173a of the guide link 173. A circumferential surface 173e slightly lower than the outer circumferential surface 173d is formed on the outer circumferential portion of the arm portion 173a, and a scale 175 is attached to the circumferential surface 173e. In the pasted state, the outer surface of the scale 175 is slightly lower than the outer peripheral surface 173d. On the rear portion of the saw cover 31 of the main body portion 10, a pointer 191 is disposed at a position facing the outer peripheral portion of the arm portion 173a. The pointer 191 has a hole 192 having a horizontal axis in the base. A support portion 132 is formed at the rear portion of the saw cover 31, and a pin 193 having a horizontal axis is fixed to the support portion 132 at its right end. And by inserting the pin 193 into the hole 192, the pointer 191 is supported so as to be rotatable about the pin 193. A torsion coil spring 194 is disposed between the pointer 191 and the support portion 132 while being guided by the pin 193. In FIG. 7, the torsion coil spring 194 is set so that its elastic force acts in a direction in which the pointer 191 is rotated clockwise, so that the tip of the pointer 191 contacts the outer peripheral surface 173d of the arm portion 173a. It is energized to touch. Since the outer peripheral surface 173d of the arm portion 173a and the scale 175 are adjacent to each other, the display of the scale 175 indicated by the tip of the pointer 191 in contact with the outer peripheral surface 173d can be easily read.

  When the cutting depth is adjusted in the cutting machine having the above-described configuration, as described above, the guide link 173 tilts up and down around the support shaft 72 as the main body 10 tilts with respect to the base 51. As a result, the positional relationship between the support portion 132 of the saw cover 31 and the scale 175 provided on the guide link 173 changes. In the present embodiment, the pointer 191 is rotatably supported and adjacent to the scale 175. Since it is urged by the torsion coil spring 194 so as to slidably contact and follow the outer peripheral surface 173d of the arm portion 173a, the adjacent state between the tip of the pointer 175 and the scale 175 is maintained. Therefore, even when adjusting to any depth of cut, the display of the scale 175 can be easily read with high accuracy. In the present embodiment, the pointer 191 is in sliding contact with the outer peripheral surface 173d of the arm portion 173a, not the scale 175, so that the scale 175 is not damaged and the scale line and the numerical value can be easily read over a long period of time. Can be maintained. Note that the scale lines and numerical values of the scale 175 take into account the amount of rotation of the pointer 191 associated with the cut depth adjustment.

  Next, a cutting machine according to a third embodiment of the present invention will be described with reference to FIG. Note that description of the same configuration as that of the second embodiment may be omitted.

  The main difference between the second embodiment and the third embodiment described above is that, in the second embodiment, the pointer 191 is rotatably installed, whereas the third embodiment of the present invention. In the embodiment, the pointer 291 is movably installed.

  The main body portion 10 of the cutting machine according to the third embodiment of the present invention is provided with a pointer 291, and the pointer 291 points to the outer peripheral portion of the arm portion 173 a of the guide link 173 of the cutting depth adjusting mechanism 170. A scale 275 that can read the cutting depth is provided. In addition, the structure of the guide link 173 and the scale 275 is the same as that of the case of 2nd embodiment, and detailed description is abbreviate | omitted. On the rear part of the saw cover 31 of the main body part 10, a pointer 291 is arranged at a position facing the outer peripheral part of the arm part 173a. The pointer 291 is formed in a substantially L shape when viewed from the side, and includes a distal end portion 291a that points to the scale 275, a connection portion 291b that is formed in a substantially square cross section to which the distal end portion 291a is connected, and extends from the connection portion 291b. And a shaft portion 291c. A support portion 232 that supports the pointer 291 in a movable manner is provided at the rear portion of the saw cover 31. The support portion 232 is formed in a cylindrical shape including a hole 232a having a substantially square cross section that opens toward the outer periphery of the guide link 173 and a small-diameter hole 232b formed in the bottom of the hole 232a. In the present embodiment, the support portion 232 is formed integrally with the saw cover 31, but a configuration in which the support portion 232 is manufactured as a separate member and fixed to the saw cover 31 with a bolt or the like may be employed. The pointer 291 is installed so that the connecting portion 291b and the shaft portion 291c are inserted into the hole 232a and the small diameter hole 232b, respectively, and can be moved to the support portion 232. A coil spring 294 is guided and installed by the shaft portion 291c between the stepped surface formed between the connecting portion 291b and the shaft portion 291c and the bottom portion of the hole 232a. The elastic force of the coil spring 294 urges the pointer 291 to move in the direction of the scale 275, so that the tip 291a of the pointer 291 is in contact with the outer peripheral surface 173d of the arm portion 173a. As in the case of the second embodiment, since the outer peripheral surface 173d of the arm portion 173a and the scale 275 are adjacent to each other, the scale 275 indicated by the tip 291a of the pointer 291 that is in contact with the outer peripheral surface 173d. The display can be read easily.

  When the cutting depth is adjusted in the cutting machine having the above-described configuration, as described above, the guide link 173 tilts up and down around the support shaft 72 as the main body 10 tilts with respect to the base 51. As a result, the positional relationship between the support portion 232 of the saw cover 31 and the scale 275 provided on the guide link 173 changes, but in this embodiment, the pointer 291 is movably supported and adjacent to the scale 275. Since the coil spring 294 is biased so as to follow the outer peripheral surface 173d of the arm portion 173a in sliding contact, the adjacent state between the tip 291a of the pointer 275 and the scale 275 is maintained. Therefore, even when adjusting to any depth of cut, the display of the scale 275 can be easily read with high accuracy. In the present embodiment, the pointer 291 is in sliding contact with the outer peripheral surface 173d of the arm portion 173a, not the scale 275, so that the scale 275 is not damaged and the scale line and the numerical value can be easily read over a long period of time. Can be maintained. Note that the scale lines and numerical values of the scale 275 take into account the amount of movement of the pointer 291 accompanying the cut depth adjustment.

  Next, a cutting machine according to a fourth embodiment of the present invention will be described with reference to FIG. Note that description of the same configuration as the first embodiment may be omitted.

  The main difference between the first embodiment and the fourth embodiment described above is that, in the first embodiment, the scale 75 is fixed to the guide link 73 and the pointer 91 is rotated so that the pointer 91 follows the scale 75. In the fourth embodiment, the pointer (pointer portion 391) is fixed, and the scale (scale member 375) can be rotated so as to follow the pointer (pointer portion 391). It is a point that is installed in.

  In the cutting machine according to the fourth embodiment of the present invention, a support shaft 374 having a horizontal axis is installed on the outer peripheral side of the rear end portion of the guide link 373 of the cutting depth adjusting mechanism 370. A base portion of the scale member 375 is rotatably supported on the support shaft 374. The scale member 375 is a belt-like member formed in an arc shape in a side view, and extends along the outer peripheral surface of the guide link 373 toward the upper front side inside the saw cover 31. A peripheral surface 375c slightly lower than the outer peripheral surface 375b is formed on the outer peripheral portion of the scale member 375, and a scale seal 375a indicating a cutting depth is attached to the peripheral surface 375c. The outer surface of the scale seal 375a attached to the peripheral surface 375c is slightly lower than the outer peripheral surface 375b. A torsion coil spring 394 is installed at the base of the scale member 375 while being guided by the support shaft 374. The torsion coil spring 394 is set so that its elastic force acts in a direction in which the scale member 375 rotates counterclockwise about the support shaft 374, whereby the outer peripheral surface 375b of the scale member 375 is a pointer which will be described later. It is urged to contact the portion 391. The rear end portion of the saw cover 31 facing the outer peripheral portion of the scale member 375 is formed as a pointer portion 391 that can read the depth of cut by pointing to the scale seal 375a attached to the scale member 375. In addition, since the outer peripheral surface 375b of the scale member 375 and the scale seal 375a are adjacent to each other, it is possible to easily read the indication of the scale seal 375a indicated by the tip of the pointer portion 391 that the outer peripheral surface 375b contacts.

  When the cutting depth is adjusted in the cutting machine having the above-described configuration, as described above, the guide link 373 tilts in the vertical direction around the support shaft 72 as the main body 10 tilts with respect to the base 51. As a result, the positional relationship between the rear end portion of the saw cover 31 and the guide link 373 changes. However, the outer peripheral surface 375b of the scale member 375 rotatably supported by the guide link 373 follows the pointer portion 391 in sliding contact. In this way, the spiral coil spring 394 is urged so that the adjacent state between the pointer 391 and the scale seal 375a attached to the scale member 375 is maintained. Therefore, even when the depth of cut is adjusted, the display on the scale seal 375a can be easily read with high accuracy. Further, since the pointer portion 391 is in sliding contact with the outer peripheral surface 375b of the scale member 375 instead of the scale seal 375a, the scale seal 375a is not damaged, and the readability can be maintained over a long period of time. Note that the scale line and the numerical value of the scale seal 375a take into account the rotation amount associated with the adjustment of the depth of cut of the scale member 375.

  Next, a cutting machine according to a fifth embodiment of the present invention will be described with reference to FIG. Note that description of the same configuration as that of the second embodiment may be omitted.

  The main difference between the second embodiment and the fifth embodiment described above is that, in the second embodiment, the scale 175 is fixed to the guide link 173, and the main body so that the pointer 191 follows the scale 175. Whereas in the fifth embodiment, the scale 475 is fixed to the saw cover 31 of the main body 10 and the pointer 491 is installed on the guide link 475 so as to follow the scale 475. Is a point.

  The guide link 473 of the cutting depth adjusting mechanism 470 of the cutting machine according to the fifth embodiment of the present invention is provided with a pointer 491, and the cutting depth is determined by the pointer 491 pointing to the saw cover 31 of the main body 10. A scale 475 can be provided. The basic configuration of the cutting depth adjusting mechanism 470 is the same as that in the second embodiment, and a detailed description thereof is omitted. On the left side surface of the saw cover 31 of the main body 10, an arc-shaped scale mounting portion 31 c that is spaced from the outer periphery of the guide link 473 by a predetermined amount in the radial direction is provided to project leftward. A peripheral surface 31e slightly lower than the outer peripheral surface 31d is formed on the outer peripheral portion of the scale attaching portion 31c, and a scale 475 indicating a cutting depth is attached to the peripheral surface 31e. The outer surface of the scale 475 attached to the peripheral surface 31 e is slightly lower than the outer peripheral surface 31. A pointer 491 is installed on a pointer support portion 473c formed on the outer peripheral portion of the guide link 473 near the tip of the arm portion 473a. The pointer 491 is a member formed in an approximately L shape by an arm portion 491a and a tip portion 491b, and the tip portion 491b faces the scale 475. A hole having a horizontal axis is formed in the base of the arm portion 491a. The hole 491 is fitted to a pin 493 having a horizontal axis fixed to the pointer support portion 473c. The support portion 473c is rotatably supported. Between the head of the pin 493 and the arm portion 491a of the pointer 491, a torsion coil spring 494 is installed while being guided by the pin 493. Then, the elastic force of the torsion coil spring 494 urges the tip 491b of the pointer 491 to rotate in the direction of the scale 475, so that the tip 491b of the pointer 491 contacts the outer peripheral surface 31d of the scale mounting portion 31c. Touching. In this state, the cutting depth is read from the display of the scale 475 indicated by the front end of the tip 491b of the pointer 491. Since the outer peripheral surface 31d of the scale attaching portion 31c and the scale 475 are adjacent to each other, the display of the scale 475 indicated by the tip portion 491b of the pointer 491 in contact with the outer peripheral surface 31d of the scale attaching portion 31c is easily read. be able to.

  When the cutting depth is adjusted in the cutting machine having the above-described configuration, as described above, the guide link 473 tilts up and down around the support shaft 172 as the main body 10 tilts with respect to the base 51. As a result, the positional relationship between the scale 475 provided on the outer peripheral surface 31d of the scale mounting portion 31c and the pointer support portion 473c of the guide link 173 changes, but in this embodiment, the pointer 491 is rotatably supported. Since it is urged by the torsion coil spring 494 so as to slidably contact and follow the outer peripheral surface 31d of the scale mounting portion 31c adjacent to the scale 475, the adjacent state between the tip 491b of the pointer 491 and the scale 475 is maintained. Is done. Therefore, even when the depth of cut is adjusted, the display of the scale 475 can be easily read with high accuracy. In the present embodiment, the tip 491b of the pointer 491 is in sliding contact with the outer peripheral surface 31d of the scale mounting portion 31c, not the scale 475, so that the scale 475 is not damaged, and the scale line and the numerical value over a long period of time. The readability can be maintained. Note that the scale lines and numerical values of the scale 475 take into account the amount of rotation of the pointer 491 accompanying the adjustment of the cutting depth.

  The preferred embodiments of the present invention have been described above, but the technical scope of the present invention is not limited to the technical scope of the above-described embodiments, and various modifications can be made without departing from the gist of the present invention. It is possible.

DESCRIPTION OF SYMBOLS 10 Main body part, 11 Saw blade, 12 Motor case, 13 Handle, 14 Switch, 21 Gear case, 31 Saw cover, 31a Hole, 31b Boss part, 31c Scale attaching part, 31d Outer peripheral surface, 31e Peripheral surface, 32 Support part, 51 Base , 52 Opening, 53 Screw shaft, 54 Bracket, 61 Lower guard, 62 Stopper, 63 Bolt, 64 Spring, 70 Depth of cut adjustment mechanism, 71 Supporter, 72 Support shaft, 73 Guide link, 73a Arm, 73b Guide groove, 73c Shallow groove, 73d outer peripheral surface, 73e peripheral surface, 75 scale, 80 fixing means, 81 nut, 82 bolt, 83 lever, 91 pointer, 92 hole, 93 pin, 94 torsion coil spring, 132 support portion, 170 cutting depth adjustment mechanism , 171 Supporter, 172 Support shaft, 173 Iclink, 173a arm, 173b guide groove, 173d outer peripheral surface, 173e peripheral surface, 175 scale, 180 fixing means, 183 lever, 191 pointer, 192 hole, 193 pin, 194 torsion coil spring, 232 support part, 232a hole, 232b Small-diameter hole, 275 scale, 291 pointer, 291a tip, 291b connection, 291c shaft, 294 coil spring, 370 depth adjustment mechanism, 373 guide link, 374 support shaft, 375 scale member, 375b outer peripheral surface, 375c peripheral surface 375a scale seal, 391 pointer section, 394 torsion coil spring, 470 cutting depth adjustment mechanism, 473 guide link, 473a arm section, 473c pointer support section, 475 scale, 491 pointer, 491a arm section, 491b tip section, 4 3-pin, 494 screws recoil spring

Claims (3)

A base that abuts the workpiece;
A main body portion provided with a saw blade for cutting a workpiece and supported on the upper surface side of the base so as to be tiltable about one end side;
In a cutting machine comprising: a cutting depth adjusting mechanism that adjusts a tilting amount of the main body relative to the base to adjust a protruding amount of the saw blade from a lower surface of the base.
The cutting depth adjusting mechanism includes a guide link that is tiltably connected to the upper surface of the base and extends upward, and a fixing unit that fixes the other end of the main body portion at a desired position in the longitudinal direction of the guide link. And
The guide link is provided with a scale, and the main body portion is provided with a pointer indicating the scale,
The pointer and are configured so that they can be read protrusion amount of the saw blade from the lower surface of said base by said scale,
The pointer is biased so that a base portion is supported so as to be rotatable or movable, and a tip portion indicating the scale follows the scale .
The cutting machine according to claim 1, wherein the distal end portion of the pointer is located on a side where the base and the guide link are connected to the base portion . A base that abuts the workpiece;
A main body portion provided with a saw blade for cutting a workpiece and supported on the upper surface side of the base so as to be tiltable about one end side;
In a cutting machine comprising: a cutting depth adjusting mechanism that adjusts a tilting amount of the main body relative to the base to adjust a protruding amount of the saw blade from a lower surface of the base.
The cutting depth adjusting mechanism includes a guide link that is tiltably connected to the upper surface of the base and extends upward, and a fixing unit that fixes the other end of the main body portion at a desired position in the longitudinal direction of the guide link. And
The guide link is provided with a scale, and the main body portion is provided with a pointer indicating the scale,
The pointer and are configured so that they can be read protrusion amount of the saw blade from the lower surface of said base by said scale,
The scale is supported so as to be pivotable and biased to follow the pointer. A base that abuts the workpiece;
A main body portion provided with a saw blade for cutting a workpiece and supported on the upper surface side of the base so as to be tiltable about one end side;
In a cutting machine comprising: a cutting depth adjusting mechanism that adjusts a tilting amount of the main body relative to the base to adjust a protruding amount of the saw blade from a lower surface of the base.
The cutting depth adjusting mechanism includes a guide link that is tiltably connected to the upper surface of the base and extends upward, and a fixing unit that fixes the other end of the main body portion at a desired position in the longitudinal direction of the guide link. And
The main body is provided with a scale along the guide link, and the guide link is provided with a pointer indicating the scale.
The pointer and are configured so that they can be read protrusion amount of the saw blade from the lower surface of said base by said scale,
The pointer is biased so that a base portion is supported so as to be rotatable or movable, and a tip portion indicating the scale follows the scale .
The cutting tool according to claim 1, wherein the base portion is located on a side where the base and the guide link are connected to the distal end portion .

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